The 1969–70 Algerian Cup was the 8th edition of the Algerian Cup. CR Belcourt were the defending champions, having beaten USM Alger 5–3 in the previous season's final.
| كأس الجزائر | |
|---|---|
| Tournament details | |
| Country |  Algeria |
| Defending champions | ES Sétif (1) |
| Final positions | |
| Champions | CR Belcourt (2) |
| Runner-up | USM Alger |
Round of 64
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Round of 32
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Round of 16
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Quarter-finals
edit| 24 May 1970 first leg | ES Guelma | 1 – 4 | CR Belcourt | Stade Ben Abdelmalek, Constantine |
| 31 May 1970 Second leg | CR Belcourt | 3 – 1 | ES Guelma | Stade d'El Anasser, Algiers |
| 24 May 1970 first leg | JS Kabylie | 2 – 2 | USM Alger | Stade Saint Eugéne, Algiers |
| 30 May 1970 Second leg | USM Alger | 3 – 1 | JS Kabylie | Stade d'El Anasser, Algiers |
| 1970 first leg | ES Mostaganem | 2 – 1 | JSM Tiaret | , |
| 1970 Second leg | JSM Tiaret | 0 – 1 | ES Mostaganem | , |
| 1970 first leg | US Santé | 0 – 0 | RC Kouba | , |
| 1970 Second leg | RC Kouba | 1 – 0 | US Santé | , |
Semi-finals
edit| 7 June 1970 first leg | CR Belcourt | 5 – 2 | RC Kouba | Stade d'El Anasser, Algiers |
| 14 June 1970 Second leg | RC Kouba | 2 – 1 | CR Belcourt | Stade Bologhine, Algiers |
| 7 June 1970 First leg | USM Alger | 1 – 0 | ES Mostaganem | Stade 19 juin 1965, Oran |
Meziani  28' |
| 20 June 1970 Second leg | ES Mostaganem | 0 – 0 | USM Alger | Stade d'El Anasser, Algiers |